<?php
//functions-post.php


class wppost {
	private static $_Instance;

	private function __construct(){
		return $this;
	}

	public static function getInstance(){
		if(!self::$_Instance){
			self::$_Instance = new wppost();
		}
		return self::$_Instance;
	}


	/////////////////////////////////////////////////////////
	/////////////// modified wordress functions /////////////

	////////////// funcitons-post.php /////////////

	/**** DB Functions ****/

	/*
	 * generic function for inserting data into the posts table.
	 */
	function wp_insert_post($postarr = array()) {
		global $wpdb, $allowedtags, $my;

		if ( is_object($postarr) )
		$postarr = get_object_vars($postarr);

		// export array as variables
		extract($postarr);

		// Are we updating or creating?
		$update = false;
		if ( !empty($ID) ) {
			$update = true;
			$post = & get_post($ID);
			$previous_status = $post->post_status;
		}

		// Get the basics.
		$post_content    = apply_filters('content_save_pre',   $post_content);
		$post_excerpt    = apply_filters('excerpt_save_pre',   $post_excerpt);
		$post_title      = apply_filters('title_save_pre',     $post_title);
		$post_category   = apply_filters('category_save_pre',  $post_category);
		$post_status     = apply_filters('status_save_pre',    $post_status);
		$post_name       = apply_filters('name_save_pre',      $post_name);
		$comment_status  = apply_filters('comment_status_pre', $comment_status);
		$ping_status     = apply_filters('ping_status_pre',    $ping_status);

		// Make sure we set a valid category
		if (0 == count($post_category) || !is_array($post_category)) {
			$post_category = array(get_option('default_category'));
		}
		$post_cat = $post_category[0];

		if ( empty($post_author) )
		$post_author = $my->id;

		if ( empty($post_status) )
		$post_status = 'draft';

		// Get the post ID.
		if ( $update )
		$post_ID = $ID;

		// Create a valid post name.  Drafts are allowed to have an empty
		// post name.
		if ( empty($post_name) ) {
			if ( 'draft' != $post_status )
			$post_name = sanitize_title($post_title);
		} else {
			$post_name = sanitize_title($post_name);
		}


		// If the post date is empty (due to having been new or a draft) and status is not 'draft', set date to now
		if (empty($post_date)) {
			if ( 'draft' != $post_status )
			$post_date = current_time('mysql');
		}

		if (empty($post_date_gmt)) {
			if ( 'draft' != $post_status )
			$post_date_gmt = get_gmt_from_date($post_date);
		}

		if ( empty($comment_status) ) {
			if ( $update )
			$comment_status = 'closed';
			else
			$comment_status = get_settings('default_comment_status');
		}
		if ( empty($ping_status) )
		$ping_status = get_settings('default_ping_status');
		if ( empty($post_pingback) )
		$post_pingback = get_option('default_pingback_flag');

		if ( isset($to_ping) )
		$to_ping = preg_replace('|\s+|', "\n", $to_ping);
		else
		$to_ping = '';

		if ( ! isset($pinged) )
		$pinged = '';

		if ( isset($post_parent) )
		$post_parent = (int) $post_parent;
		else
		$post_parent = 0;

		if ( isset($menu_order) )
		$menu_order = (int) $menu_order;
		else
		$menu_order = 0;

		if ( !isset($post_password) )
		$post_password = '';

		if ( ('publish' == $post_status) || ('static' == $post_status) ) {
			$post_name_check = ('publish' == $post_status)
			? $wpdb->get_var("SELECT post_name FROM $wpdb->posts WHERE post_name = '$post_name' AND post_status = 'publish' AND ID != '$post_ID' LIMIT 1")
			: $wpdb->get_var("SELECT post_name FROM $wpdb->posts WHERE post_name = '$post_name' AND post_status = 'static' AND ID != '$post_ID' AND post_parent = '$post_parent' LIMIT 1");

			if ($post_name_check) {
				$suffix = 2;
				while ($post_name_check) {
					$alt_post_name = $post_name . "-$suffix";
					$post_name_check = ('publish' == $post_status)
					? $wpdb->get_var("SELECT post_name FROM $wpdb->posts WHERE post_name = '$alt_post_name' AND post_status = 'publish' AND ID != '$post_ID' LIMIT 1")
					: $wpdb->get_var("SELECT post_name FROM $wpdb->posts WHERE post_name = '$alt_post_name' AND post_status = 'static' AND ID != '$post_ID' AND post_parent = '$post_parent' LIMIT 1");
					$suffix++;
				}
				$post_name = $alt_post_name;
			}
		}

		if ($update) {
			$wpdb->query(
			"UPDATE $wpdb->posts SET
			post_author = '$post_author',
			post_date = '$post_date',
			post_date_gmt = '$post_date_gmt',
			post_content = '$post_content',
			post_content_filtered = '$post_content_filtered',
			post_title = '$post_title',
			post_excerpt = '$post_excerpt',
			post_status = '$post_status',
			comment_status = '$comment_status',
			ping_status = '$ping_status',
			post_password = '$post_password',
			post_name = '$post_name',
			to_ping = '$to_ping',
			pinged = '$pinged',
			post_modified = '".current_time('mysql')."',
			post_modified_gmt = '".current_time('mysql',1)."',
			post_parent = '$post_parent',
			menu_order = '$menu_order'
			WHERE ID = $post_ID");
		} else {
			$wpdb->query(
			"INSERT INTO $wpdb->posts
			(post_author, post_date, post_date_gmt, post_content, post_content_filtered, post_title, post_excerpt,  post_status, comment_status, ping_status, post_password, post_name, to_ping, pinged, post_modified, post_modified_gmt, post_parent, menu_order, post_mime_type)
			VALUES
			('$post_author', '$post_date', '$post_date_gmt', '$post_content', '$post_content_filtered', '$post_title', '$post_excerpt', '$post_status', '$comment_status', '$ping_status', '$post_password', '$post_name', '$to_ping', '$pinged', '$post_date', '$post_date_gmt', '$post_parent', '$menu_order', '$post_mime_type')");
			$post_ID = $wpdb->insert_id;
		}

		if ( empty($post_name) && 'draft' != $post_status ) {
			$post_name = sanitize_title($post_title, $post_ID);
			$wpdb->query( "UPDATE $wpdb->posts SET post_name = '$post_name' WHERE ID = '$post_ID'" );
		}

		wp_set_post_cats('', $post_ID, $post_category);

		if ( 'static' == $post_status ) {
			clean_page_cache($post_ID);
			wp_cache_delete($post_ID, 'pages');
		} else {
			clean_post_cache($post_ID);
		}

		// Set GUID
		if ( ! $update )
		$wpdb->query("UPDATE $wpdb->posts SET guid = '/?p=".$post_ID. "' WHERE ID = '$post_ID'");

		if ( $update) {
			if ($previous_status != 'publish' && $post_status == 'publish') {
				// Reset GUID if transitioning to publish.
				$wpdb->query("UPDATE $wpdb->posts SET guid = '/?p=" .$post_ID. "' WHERE ID = '$post_ID'");
				do_action('private_to_published', $post_ID);
			}

			do_action('edit_post', $post_ID);
		}

		if ($post_status == 'publish') {
			do_action('publish_post', $post_ID);

			if ( !defined('WP_IMPORTING') ) {
				if ( $post_pingback )
				$result = $wpdb->query("
				INSERT INTO $wpdb->postmeta
				(post_id,meta_key,meta_value)
				VALUES ('$post_ID','_pingme','1')
				");
				$result = $wpdb->query("
				INSERT INTO $wpdb->postmeta
				(post_id,meta_key,meta_value)
				VALUES ('$post_ID','_encloseme','1')
			");
				spawn_pinger();
			}
		} else if ($post_status == 'static') {
			generate_page_rewrite_rules();

			if ( !empty($page_template) )
			if ( ! update_post_meta($post_ID, '_wp_page_template',  $page_template))
			add_post_meta($post_ID, '_wp_page_template',  $page_template, true);
		}

		do_action('save_post', $post_ID);
		do_action('wp_insert_post', $post_ID);

		return $post_ID;
	}

	function wp_insert_attachment($object, $file = false, $post_parent = 0) {
		global $wpdb, $my;

		if ( is_object($object) )
		$object = get_object_vars($object);

		// Export array as variables
		extract($object);

		// Get the basics.
		$post_content    = apply_filters('content_save_pre',   $post_content);
		$post_excerpt    = apply_filters('excerpt_save_pre',   $post_excerpt);
		$post_title      = apply_filters('title_save_pre',     $post_title);
		$post_category   = apply_filters('category_save_pre',  $post_category);
		$post_name       = apply_filters('name_save_pre',      $post_name);
		$comment_status  = apply_filters('comment_status_pre', $comment_status);
		$ping_status     = apply_filters('ping_status_pre',    $ping_status);
		$post_mime_type  = apply_filters('post_mime_type_pre', $post_mime_type);

		// Make sure we set a valid category
		if (0 == count($post_category) || !is_array($post_category)) {
			$post_category = array(get_option('default_category'));
		}
		$post_cat = $post_category[0];

		if ( empty($post_author) )
		$post_author = $my->id;

		$post_status = 'attachment';

		// Are we updating or creating?
		$update = false;
		if ( !empty($ID) ) {
			$update = true;
			$post_ID = $ID;
		}

		// Create a valid post name.
		if ( empty($post_name) )
		$post_name = sanitize_title($post_title);
		else
		$post_name = sanitize_title($post_name);

		if (empty($post_date))
		$post_date = current_time('mysql');
		if (empty($post_date_gmt))
		$post_date_gmt = current_time('mysql', 1);

		if ( empty($comment_status) ) {
			if ( $update )
			$comment_status = 'closed';
			else
			$comment_status = get_settings('default_comment_status');
		}
		if ( empty($ping_status) )
		$ping_status = get_settings('default_ping_status');
		if ( empty($post_pingback) )
		$post_pingback = get_option('default_pingback_flag');

		if ( isset($to_ping) )
		$to_ping = preg_replace('|\s+|', "\n", $to_ping);
		else
		$to_ping = '';

		if ( isset($post_parent) )
		$post_parent = (int) $post_parent;
		else
		$post_parent = 0;

		if ( isset($menu_order) )
		$menu_order = (int) $menu_order;
		else
		$menu_order = 0;

		if ( !isset($post_password) )
		$post_password = '';

		if ( isset($to_ping) )
		$to_ping = preg_replace('|\s+|', "\n", $to_ping);
		else
		$to_ping = '';

		if ( ! isset($pinged) )
		$pinged = '';

		if ($update) {
			$wpdb->query(
			"UPDATE $wpdb->posts SET
			post_author = '$post_author',
			post_date = '$post_date',
			post_date_gmt = '$post_date_gmt',
			post_content = '$post_content',
			post_title = '$post_title',
			post_excerpt = '$post_excerpt',
			post_status = '$post_status',
			comment_status = '$comment_status',
			ping_status = '$ping_status',
			post_password = '$post_password',
			post_name = '$post_name',
			to_ping = '$to_ping',
			pinged = '$pinged',
			post_modified = '".current_time('mysql')."',
			post_modified_gmt = '".current_time('mysql',1)."',
			post_parent = '$post_parent',
			menu_order = '$menu_order',
			post_mime_type = '$post_mime_type',
			guid = '$guid'
			WHERE ID = $post_ID");
		} else {
			$wpdb->query(
			"INSERT INTO $wpdb->posts
			(post_author, post_date, post_date_gmt, post_content, post_title, post_excerpt,  post_status, comment_status, ping_status, post_password, post_name, to_ping, pinged, post_modified, post_modified_gmt, post_parent, menu_order, post_mime_type, guid)
			VALUES
			('$post_author', '$post_date', '$post_date_gmt', '$post_content', '$post_title', '$post_excerpt', '$post_status', '$comment_status', '$ping_status', '$post_password', '$post_name', '$to_ping', '$pinged', '$post_date', '$post_date_gmt', '$post_parent', '$menu_order', '$post_mime_type', '$guid')");
			$post_ID = $wpdb->insert_id;
		}

		if ( empty($post_name) ) {
			$post_name = sanitize_title($post_title, $post_ID);
			$wpdb->query( "UPDATE $wpdb->posts SET post_name = '$post_name' WHERE ID = '$post_ID'" );
		}

		wp_set_post_cats('', $post_ID, $post_category);

		if ( $file )
		add_post_meta($post_ID, '_wp_attached_file', $file);

		clean_post_cache($post_ID);

		if ( $update) {
			do_action('edit_attachment', $post_ID);
		} else {
			do_action('add_attachment', $post_ID);
		}

		return $post_ID;
	}

	function wp_delete_attachment($postid) {
		global $wpdb;
		$postid = (int) $postid;

		if ( !$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = $postid") )
		return $post;

		if ( 'attachment' != $post->post_status )
		return false;

		$meta = get_post_meta($postid, '_wp_attachment_metadata', true);
		$file = get_post_meta($postid, '_wp_attached_file', true);

		$wpdb->query("DELETE FROM $wpdb->posts WHERE ID = $postid");

		$wpdb->query("DELETE FROM $wpdb->comments WHERE comment_post_ID = $postid");

		$wpdb->query("DELETE FROM $wpdb->post2cat WHERE post_id = $postid");

		$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = $postid");

		if ( ! empty($meta['thumb']) ) {
			// Don't delete the thumb if another attachment uses it
			if (! $foo = $wpdb->get_row("SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE '%".$wpdb->escape($meta['thumb'])."%' AND post_id <> $postid"))
			@ unlink(str_replace(basename($file), $meta['thumb'], $file));
		}

		if ( ! empty($file) )
		@ unlink($file);

		do_action('delete_attachment', $postid);

		return $post;
	}

	function wp_get_single_post($postid = 0, $mode = OBJECT) {
		global $wpdb;

		$post = get_post($postid, $mode);

		// Set categories
		if($mode == OBJECT) {
			$post->post_category = wp_get_post_cats('',$postid);
		}
		else {
			$post['post_category'] = wp_get_post_cats('',$postid);
		}

		return $post;
	}

	function wp_get_recent_posts($num = 10) {
		global $wpdb;

		// Set the limit clause, if we got a limit
		if ($num) {
			$limit = "LIMIT $num";
		}

		$sql = "SELECT * FROM $wpdb->posts WHERE post_status IN ('publish', 'draft', 'private') ORDER BY post_date DESC $limit";
		$result = $wpdb->get_results($sql,ARRAY_A);

		return $result?$result:array();
	}

	function wp_update_post($postarr = array()) {
		global $wpdb;

		if ( is_object($postarr) )
		$postarr = get_object_vars($postarr);

		// First, get all of the original fields
		$post = wp_get_single_post($postarr['ID'], ARRAY_A);

		// Escape data pulled from DB.
		$post = add_magic_quotes($post);

		// Passed post category list overwrites existing category list if not empty.
		if ( isset($postarr['post_category']) && is_array($postarr['post_category'])
		&& 0 != count($postarr['post_category']) )
		$post_cats = $postarr['post_category'];
		else
		$post_cats = $post['post_category'];

		// Drafts shouldn't be assigned a date unless explicitly done so by the user
		if ( 'draft' == $post['post_status'] && empty($postarr['edit_date']) && empty($postarr['post_date']) &&
		('0000-00-00 00:00:00' == $post['post_date']) )
		$clear_date = true;
		else
		$clear_date = false;

		// Merge old and new fields with new fields overwriting old ones.
		$postarr = array_merge($post, $postarr);
		$postarr['post_category'] = $post_cats;
		if ( $clear_date ) {
			$postarr['post_date'] = '';
			$postarr['post_date_gmt'] = '';
		}

		if ($postarr['post_status'] == 'attachment')
		return wp_insert_attachment($postarr);

		return wp_insert_post($postarr);
	}

	function wp_get_post_cats($blogid = '1', $post_ID = 0) {
		global $wpdb;

		$sql = "SELECT category_id
		FROM $wpdb->post2cat
		WHERE post_id = $post_ID
		ORDER BY category_id";

		$result = $wpdb->get_col($sql);

		if ( !$result )
		$result = array();

		return array_unique($result);
	}

	function wp_set_post_cats($blogid = '1', $post_ID = 0, $post_categories = array()) {
		global $wpdb;
		// If $post_categories isn't already an array, make it one:
		if (!is_array($post_categories) || 0 == count($post_categories))
		$post_categories = array(get_option('default_category'));

		$post_categories = array_unique($post_categories);

		// First the old categories
		$old_categories = $wpdb->get_col("
		SELECT category_id
		FROM $wpdb->post2cat
		WHERE post_id = $post_ID");

		if (!$old_categories) {
			$old_categories = array();
		} else {
			$old_categories = array_unique($old_categories);
		}


		$oldies = printr($old_categories,1);
		$newbies = printr($post_categories,1);

		// Delete any?
		$delete_cats = array_diff($old_categories,$post_categories);

		if ($delete_cats) {
			foreach ($delete_cats as $del) {
				$wpdb->query("
				DELETE FROM $wpdb->post2cat
				WHERE category_id = $del
				AND post_id = $post_ID
				");
			}
		}

		// Add any?
		$add_cats = array_diff($post_categories, $old_categories);

		if ($add_cats) {
			foreach ($add_cats as $new_cat) {
				$wpdb->query("
				INSERT INTO $wpdb->post2cat (post_id, category_id)
				VALUES ($post_ID, $new_cat)");
			}
		}

		// Update category counts.
		$all_affected_cats = array_unique(array_merge($post_categories, $old_categories));
		foreach ( $all_affected_cats as $cat_id ) {
			$count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->post2cat, $wpdb->posts WHERE $wpdb->posts.ID=$wpdb->post2cat.post_id AND post_status='publish' AND category_id = '$cat_id'");
			$wpdb->query("UPDATE $wpdb->categories SET category_count = '$count' WHERE cat_ID = '$cat_id'");
			wp_cache_delete($cat_id, 'category');
		}
	}	// wp_set_post_cats()

	function wp_delete_post($postid = 0) {
		global $wpdb;
		$postid = (int) $postid;

		if ( !$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = $postid") )
		return $post;

		if ( 'attachment' == $post->post_status )
		return wp_delete_attachment($postid);

		do_action('delete_post', $postid);

		if ( 'publish' == $post->post_status) {
			$categories = wp_get_post_cats('', $post->ID);
			if( is_array( $categories ) ) {
				foreach ( $categories as $cat_id ) {
					$wpdb->query("UPDATE $wpdb->categories SET category_count = category_count - 1 WHERE cat_ID = '$cat_id'");
					wp_cache_delete($cat_id, 'category');
				}
			}
		}

		if ( 'static' == $post->post_status )
		$wpdb->query("UPDATE $wpdb->posts SET post_parent = $post->post_parent WHERE post_parent = $postid AND post_status = 'static'");

		$wpdb->query("DELETE FROM $wpdb->posts WHERE ID = $postid");

		$wpdb->query("DELETE FROM $wpdb->comments WHERE comment_post_ID = $postid");

		$wpdb->query("DELETE FROM $wpdb->post2cat WHERE post_id = $postid");

		$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = $postid");

		if ( 'static' == $post->post_status )
		generate_page_rewrite_rules();

		return $post;
	}

	/**** /DB Functions ****/

	/**** Misc ****/

	// get permalink from post ID
	function post_permalink($post_id = 0, $mode = '') { // $mode legacy
		return get_permalink($post_id);
	}

	// Get the name of a category from its ID
	function get_cat_name($cat_id) {
		global $wpdb;

		$cat_id -= 0; 	// force numeric
		$name = $wpdb->get_var("SELECT cat_name FROM $wpdb->categories WHERE cat_ID=$cat_id");

		return $name;
	}

	// Get the ID of a category from its name
	function get_cat_ID($cat_name='General') {
		global $wpdb;

		$cid = $wpdb->get_var("SELECT cat_ID FROM $wpdb->categories WHERE cat_name='$cat_name'");

		return $cid?$cid:1;	// default to cat 1
	}

	// Get author's preferred display name
	function get_author_name( $auth_id ) {
		$authordata = get_userdata( $auth_id );

		return $authordata->display_name;
	}

	// get extended entry info (<!--more-->)
	function get_extended($post) {
		list($main,$extended) = explode('<!--more-->', $post, 2);

		// Strip leading and trailing whitespace
		$main = preg_replace('/^[\s]*(.*)[\s]*$/','\\1',$main);
		$extended = preg_replace('/^[\s]*(.*)[\s]*$/','\\1',$extended);

		return array('main' => $main, 'extended' => $extended);
	}

	// do trackbacks for a list of urls
	// borrowed from edit.php
	// accepts a comma-separated list of trackback urls and a post id
	function trackback_url_list($tb_list, $post_id) {
		if (!empty($tb_list)) {
			// get post data
			$postdata = wp_get_single_post($post_id, ARRAY_A);

			// import postdata as variables
			extract($postdata);

			// form an excerpt
			$excerpt = strip_tags($post_excerpt?$post_excerpt:$post_content);

			if (strlen($excerpt) > 255) {
				$excerpt = substr($excerpt,0,252) . '...';
			}

			$trackback_urls = explode(',', $tb_list);
			foreach($trackback_urls as $tb_url) {
				$tb_url = trim($tb_url);
				trackback($tb_url, stripslashes($post_title), $excerpt, $post_id);
			}
		}
	}

	function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) {
		global $wpdb;

		do_action('wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent);

		if ( preg_match_all('/&#(\d+);/', $comment . $author . $url, $chars) ) {
			foreach ($chars[1] as $char) {
				// If it's an encoded char in the normal ASCII set, reject
				if ($char < 128)
				return true;
			}
		}

		$mod_keys = trim( get_settings('blacklist_keys') );
		if ('' == $mod_keys )
		return false; // If moderation keys are empty
		$words = explode("\n", $mod_keys );

		foreach ($words as $word) {
			$word = trim($word);

			// Skip empty lines
			if ( empty($word) ) { continue; }

			// Do some escaping magic so that '#' chars in the
			// spam words don't break things:
			$word = preg_quote($word, '#');

			$pattern = "#$word#i";
			if ( preg_match($pattern, $author    ) ) return true;
			if ( preg_match($pattern, $email     ) ) return true;
			if ( preg_match($pattern, $url       ) ) return true;
			if ( preg_match($pattern, $comment   ) ) return true;
			if ( preg_match($pattern, $user_ip   ) ) return true;
			if ( preg_match($pattern, $user_agent) ) return true;
		}

		if ( isset($_SERVER['REMOTE_ADDR']) ) {
			if ( wp_proxy_check($_SERVER['REMOTE_ADDR']) ) return true;
		}

		return false;
	}

	function wp_proxy_check($ipnum) {
		if ( get_option('open_proxy_check') && isset($ipnum) ) {
			$rev_ip = implode( '.', array_reverse( explode( '.', $ipnum ) ) );
			$lookup = $rev_ip . '.opm.blitzed.org';
			if ( $lookup != gethostbyname( $lookup ) )
			return true;
		}

		return false;
	}

	function do_trackbacks($post_id) {
		global $wpdb;

		$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = $post_id");
		$to_ping = get_to_ping($post_id);
		$pinged  = get_pung($post_id);
		if ( empty($to_ping) )
		return;
		if (empty($post->post_excerpt))
		$excerpt = apply_filters('the_content', $post->post_content);
		else
		$excerpt = apply_filters('the_excerpt', $post->post_excerpt);
		$excerpt = str_replace(']]>', ']]&gt;', $excerpt);
		$excerpt = strip_tags($excerpt);
		$excerpt = substr($excerpt, 0, 252) . '...';

		$post_title = apply_filters('the_title', $post->post_title);
		$post_title = strip_tags($post_title);

		if ($to_ping) : foreach ($to_ping as $tb_ping) :
		$tb_ping = trim($tb_ping);
		if ( !in_array($tb_ping, $pinged) ) {
			trackback($tb_ping, $post_title, $excerpt, $post_id);
			$pinged[] = $tb_ping;
		} else {
			$wpdb->query("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, '$tb_ping', '')) WHERE ID = '$post_id'");
		}
		endforeach; endif;
	}

	function get_pung($post_id) { // Get URIs already pung for a post
		global $wpdb;
		$pung = $wpdb->get_var("SELECT pinged FROM $wpdb->posts WHERE ID = $post_id");
		$pung = trim($pung);
		$pung = preg_split('/\s/', $pung);
		$pung = apply_filters('get_pung', $pung);
		return $pung;
	}

	function get_enclosed($post_id) { // Get enclosures already enclosed for a post
		global $wpdb;
		$custom_fields = get_post_custom( $post_id );
		$pung = array();
		if ( !is_array( $custom_fields ) )
		return $pung;

		foreach ( $custom_fields as $key => $val ) {
			if ( 'enclosure' != $key || !is_array( $val ) )
			continue;
			foreach( $val as $enc ) {
				$enclosure = split( "\n", $enc );
				$pung[] = trim( $enclosure[ 0 ] );
			}
		}
		$pung = apply_filters('get_enclosed', $pung);
		return $pung;
	}

	function get_to_ping($post_id) { // Get any URIs in the todo list
		global $wpdb;
		$to_ping = $wpdb->get_var("SELECT to_ping FROM $wpdb->posts WHERE ID = $post_id");
		$to_ping = trim($to_ping);
		$to_ping = preg_split('/\s/', $to_ping, -1, PREG_SPLIT_NO_EMPTY);
		$to_ping = apply_filters('get_to_ping',  $to_ping);
		return $to_ping;
	}

	function add_ping($post_id, $uri) { // Add a URI to those already pung
		global $wpdb;
		$pung = $wpdb->get_var("SELECT pinged FROM $wpdb->posts WHERE ID = $post_id");
		$pung = trim($pung);
		$pung = preg_split('/\s/', $pung);
		$pung[] = $uri;
		$new = implode("\n", $pung);
		$new = apply_filters('add_ping', $new);
		return $wpdb->query("UPDATE $wpdb->posts SET pinged = '$new' WHERE ID = $post_id");
	}

	//fetches the pages returned as a FLAT list, but arranged in order of their hierarchy, i.e., child parents
	//immediately follow their parents
	function get_page_hierarchy($posts, $parent = 0) {
		$result = array ( );
		if ($posts) { foreach ($posts as $post) {
			if ($post->post_parent == $parent) {
				$result[$post->ID] = $post->post_name;
				$children = get_page_hierarchy($posts, $post->ID);
				$result += $children; //append $children to $result
			}
		} }
		return $result;
	}

	function generate_page_rewrite_rules() {
		global $wpdb;

		//get pages in order of hierarchy, i.e. children after parents
		$posts = get_page_hierarchy($wpdb->get_results("SELECT ID, post_name, post_parent FROM $wpdb->posts WHERE post_status = 'static'"));
		//now reverse it, because we need parents after children for rewrite rules to work properly
		$posts = array_reverse($posts, true);

		$page_rewrite_rules = array();

		if ($posts) {

			foreach ($posts as $id => $post) {
				// URI => page name
				$uri = get_page_uri($id);
					
				$page_rewrite_rules[$uri] = $post;
			}

			update_option('page_uris', $page_rewrite_rules);

			save_mod_rewrite_rules();
		}
	}

	function get_post_status($ID = '') {
		$post = get_post($ID);

		if ( is_object($post) ) {
			if ( ('attachment' == $post->post_status) && $post->post_parent && ($post->ID != $post->post_parent) )
			return get_post_status($post->post_parent);
			else
			return $post->post_status;
		}

		return false;
	}

	// Takes a post ID, returns its mime type.
	function get_post_mime_type($ID = '') {
		$post = & get_post($ID);

		if ( is_object($post) )
		return $post->post_mime_type;

		return false;
	}

	function get_attached_file($attachment_id) {
		return get_post_meta($attachment_id, '_wp_attached_file', true);
	}

	// Returns an array containing the current upload directory's path and url, or an error message.
	function wp_upload_dir() {
		if ( defined('UPLOADS') )
		$dir = UPLOADS;
		else
		$dir = 'wp-content/uploads';

		$path = ABSPATH . $dir;

		// Give the new dirs the same perms as wp-content.
		$stat = stat(ABSPATH . 'wp-content');
		$dir_perms = $stat['mode'] & 0000777;  // Get the permission bits.

		// Make sure we have an uploads dir
		if ( ! file_exists( $path ) ) {
			if ( ! @ mkdir( $path ) )
			return array('error' => "Unable to create directory $path. Is its parent directory writable by the server?");
			@ chmod( $path, $dir_perms );
		}

		// Generate the yearly and monthly dirs
		$time = current_time( 'mysql' );
		$y = substr( $time, 0, 4 );
		$m = substr( $time, 5, 2 );
		$pathy = "$path/$y";
		$pathym = "$path/$y/$m";

		// Make sure we have a yearly dir
		if ( ! file_exists( $pathy ) ) {
			if ( ! @ mkdir( $pathy ) )
			return array('error' => "Unable to create directory $pathy. Is $path writable?");
			@ chmod( $pathy, $dir_perms );
		}

		// Make sure we have a monthly dir
		if ( ! file_exists( $pathym ) ) {
			if ( ! @ mkdir( $pathym ) )
			return array('error' => "Unable to create directory $pathym. Is $pathy writable?");
			@ chmod( $pathym, $dir_perms );
		}

		$uploads = array('path' => $pathym, 'url' => get_option('siteurl') . "/$dir/$y/$m", 'error' => false);
		return apply_filters('upload_dir', $uploads);
	}

	function wp_upload_bits($name, $type, $bits) {
		if ( empty($name) )
		return array('error' => "Empty filename");

		$upload = wp_upload_dir();

		if ( $upload['error'] !== false )
		return $upload;

		$number = '';
		$filename = $name;
		while ( file_exists($upload['path'] . "/$filename") )
		$filename = str_replace("$number.$ext", ++$number . ".$ext", $filename);

		$new_file = $uploads['path'] . "/$filename";
		$ifp = @ fopen($new_file, 'wb');
		if ( ! $ifp )
		return array('error' => "Could not write file $new_file.");

		$success = @ fwrite($ifp, $bits);
		fclose($ifp);
		// Set correct file permissions
		$stat = @ stat(dirname($new_file));
		$perms = $stat['mode'] & 0000777;
		@ chmod($new_file, $perms);

		// Compute the URL
		$url = $upload['url'] . "/$filename";

		return array('file' => $new_file, 'url' => $url);
	}
	///////////
}
?>